Automobile exhaust pipe structure
By designing the car exhaust pipe structure, using components such as silencer holes, corrugated silencer layer and waterproof spiral, the problems of high noise during the car's driving and water inlet in the exhaust pipe are solved, and noise cancellation and water sealing effects are achieved.
Patent Information
- Application Number
- CN202421532179.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The car is noisy during driving, especially when wading on the water surface, the exhaust pipe is prone to water inlet.
A car exhaust pipe structure is designed, including a catalytic box, a silencer barrel and a waterproof pipe, and noise cancellation and water sealing are achieved through a combination of components such as silencer holes, corrugated silencer layers, fasteners and waterproof spirals.
It effectively reduces exhaust noise, prevents water from entering the exhaust pipe, and improves the comfort and reliability of the car during driving.
Smart Images
Figure CN223089384U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile manufacturing, and particularly relates to an automobile exhaust pipe structure. Background Art
[0002] Automobile manufacturing and assembly technology mainly studies the basic knowledge and skills in aspects such as automobile structure, automobile maintenance, automobile assembly and debugging technology, etc., and conducts automobile manufacturing, assembly, debugging, quality control, etc. in the field of automobile manufacturing and assembly technology. For example: assembly of complete vehicles and component assemblies of automobiles, performance detection, debugging, adjustment and maintenance, daily maintenance and repair of production equipment, on-site management of automobile assembly production and product quality management, etc.
[0003] During the driving process of an automobile, there will be a lot of noise, and when the automobile drives through a wading road surface, water is likely to enter the exhaust pipe. Content of the Utility Model
[0004] In order to solve the problems raised in the above background art, the utility model provides an automobile exhaust pipe structure, which solves the problem of great noise during the driving process of an automobile.
[0005] To achieve the above object, the utility model provides the following technical solution: an automobile exhaust pipe structure, including a catalytic box, a silencing barrel and a waterproof pipe, connectors are fixedly installed at both ends of the catalytic box, and an air pipe is fixedly installed on one side of the connectors;
[0006] A first ceramic block is fixedly installed inside the catalytic box, a second ceramic block is fixedly installed inside the catalytic box, and a resonance silencing pipe is fixedly connected to one side of the silencing barrel;
[0007] A first silencing plate is fixedly installed inside the silencing barrel, a second silencing plate is fixedly installed inside the silencing barrel, and a partition plate is fixedly installed inside the silencing barrel;
[0008] A first silencing pipe is fixedly installed inside the first silencing plate, the second silencing plate and the partition plate, sound holes are formed on the surface of the first silencing pipe, and a second silencing pipe is fixedly installed inside the second silencing plate and the partition plate;
[0009] A third silencing plate is fixedly installed inside the silencing barrel, and a third silencing pipe is fixedly installed inside the second silencing plate, the third silencing plate and the partition plate;
[0010] A fourth silencing plate is fixedly installed inside the silencing barrel, an exhaust pipe is fixedly installed on one side of the silencing barrel, a rubber ring is movably installed on the outer surface of the exhaust pipe, and a fastener is fixedly installed outside the rubber ring;
[0011] A reserved groove is provided on the exterior of the fastener, a threaded ring is threadedly connected to the exterior of the fastener, and a water-blocking spiral is fixedly installed inside the waterproof pipe.
[0012] Preferably, the sound-absorbing holes are located between the second sound-absorbing plate and the partition, and the sound-absorbing holes are arranged in a circular array.
[0013] Preferably, a corrugated sound-absorbing layer is installed on one side of the first sound-absorbing plate, the second sound-absorbing plate, the third sound-absorbing plate, and the fourth sound-absorbing plate, and the corrugated sound-absorbing layers of the first sound-absorbing plate and the second sound-absorbing plate are inside the same chamber, and the corrugated sound-absorbing layers of the third sound-absorbing plate and the fourth sound-absorbing plate are inside the same chamber.
[0014] Preferably, a part of the fastener close to the sound-absorbing barrel has a larger thickness, and a part located inside the threaded ring has a smaller thickness.
[0015] Preferably, the air outlet of the waterproof pipe faces downward.
[0016] Preferably, there are four chambers inside the sound-absorbing barrel, and the four chambers are separated by the second sound-absorbing plate, the partition, and the third sound-insulating plate.
[0017] Preferably, the interiors of the catalytic box, the resonance sound-absorbing pipe, the sound-absorbing barrel, the exhaust pipe, and the waterproof pipe communicate with each other.
[0018] Compared with the prior art, the beneficial effects of the present utility model are:
[0019] 1. For the structure of the automobile exhaust pipe, by making the sound-absorbing holes located between the second sound-absorbing plate and the partition, and the sound-absorbing holes are arranged in a circular array, the exhaust noise can be better eliminated. By making the corrugated sound-absorbing layers of the first sound-absorbing plate and the second sound-absorbing plate inside the same chamber, and the corrugated sound-absorbing layers of the third sound-absorbing plate and the fourth sound-absorbing plate inside the same chamber, the sound wave can be silenced when passing through these two chambers.
[0020] 2. For the structure of the automobile exhaust pipe, by installing a part of the fastener close to the sound-absorbing barrel with a larger thickness and a part located inside the threaded ring with a smaller thickness, the reserved groove can be tightened when the threaded ring is rotated, so that the fastener can clamp the exhaust pipe and then fix the waterproof pipe. By installing the air outlet of the waterproof pipe facing downward, the probability of water entering the waterproof pipe can be reduced. By the four chambers separated by the second sound-absorbing plate, the partition, and the third sound-insulating plate, the exhaust noise can be eliminated to the greatest extent. By making the interiors of the catalytic box, the resonance sound-absorbing pipe, the sound-absorbing barrel, the exhaust pipe, and the waterproof pipe communicate with each other, the exhaust gas and noise can be processed through the catalytic box and the sound-absorbing barrel. Description of the Drawings
[0021] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model, and together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:
[0022] Figure 1 is the complete structural schematic diagram of the present utility model;
[0023] Figure 2 for the present utility model Figure 1 is the partial enlarged view of A in;
[0024] Figure 3 is the perspective view of the present utility model.
[0025] In the figure: 1, catalytic box; 2, silencing barrel; 3, waterproof pipe; 4, connecting piece; 5, air pipe; 6, first ceramic block; 7, second ceramic block; 8, first silencing plate; 9, second silencing plate; 10, partition board; 11, first silencing pipe; 12, silencing hole; 13, second silencing pipe; 14, third silencing plate; 15, third silencing pipe; 16, fourth silencing plate; 17, exhaust pipe; 18, rubber ring; 19, fastener; 20, reserved groove; 21, threaded ring; 22, water-blocking spiral; 23, resonance silencing pipe. Specific embodiments
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.
[0027] Please refer to Figures 1-3 , the present utility model provides the following technical solutions: An automobile exhaust pipe structure includes a catalytic box 1, a silencing barrel 2 and a waterproof pipe 3. Connecting pieces 4 are fixedly installed at both ends of the catalytic box 1, and an air pipe 5 is fixedly installed on one side of the connecting piece 4;
[0028] A first ceramic block 6 is fixedly installed inside the catalytic box 1, a second ceramic block 7 is fixedly installed inside the catalytic box 1, and a resonance silencing pipe 23 is fixedly connected to one side of the silencing barrel 2;
[0029] A first silencing plate 8 is fixedly installed inside the silencing barrel 2, a second silencing plate 9 is fixedly installed inside the silencing barrel 2, and a partition board 10 is fixedly installed inside the silencing barrel 2;
[0030] Inside the first sound insulation board 8, the second sound insulation board 9 and the partition 10, a first sound insulation pipe 11 is fixedly installed. Sound insulation holes 12 are formed on the surface of the first sound insulation pipe 11. Inside the second sound insulation board 9 and the partition 10, a second sound insulation pipe 13 is fixedly installed;
[0031] Inside the sound insulation barrel 2, a third sound insulation board 14 is fixedly installed. Inside the second sound insulation board 9, the third sound insulation board 14 and the partition 10, a third sound insulation pipe 15 is fixedly installed;
[0032] Inside the sound insulation barrel 2, a fourth sound insulation board 16 is fixedly installed. On one side of the sound insulation barrel 2, an exhaust pipe 17 is fixedly installed. A rubber ring 18 is movably installed on the outer surface of the exhaust pipe 17, and a fastener 19 is fixedly installed on the outside of the rubber ring 18;
[0033] A reserved groove 20 is formed on the outside of the fastener 19. A threaded ring 21 is threadedly connected to the outside of the fastener 19. A water blocking spiral 22 is fixedly installed inside the waterproof pipe 3.
[0034] In this embodiment, by making the sound insulation holes 12 located between the second sound insulation board 13 and the partition 10, and the sound insulation holes 12 are arranged in a circular array, the exhaust noise can be better eliminated. By making the corrugated sound insulation layers of the first sound insulation board 8 and the second sound insulation board 9 in the same chamber, and the corrugated sound insulation layers of the third sound insulation board 14 and the fourth sound insulation board 16 in the same chamber, the sound waves can be silenced when passing through these two chambers. By installing the fastener 19, a part close to the sound insulation barrel 2 has a larger thickness, and a part located inside the threaded ring 21 has a smaller thickness. When the threaded ring is rotated, the reserved groove 20 can be tightened, so that the fastener 19 clamps the exhaust pipe 17 and then fixes the waterproof pipe 3. By installing the air outlet of the waterproof pipe 3 facing downward, the probability of water entering the waterproof pipe 3 can be reduced. Through the four chambers separated by the second sound insulation board 9, the partition 10 and the third sound insulation board 14, the exhaust noise can be eliminated to the greatest extent. By making the inside of the catalytic box 1, the resonance sound insulation pipe 23, the sound insulation barrel 2, the exhaust pipe 17 and the waterproof pipe 3 communicate with each other, the waste gas and noise can be processed through the catalytic box 1 and the sound insulation barrel 2.
[0035] Specifically, the sound insulation holes 12 are located between the second sound insulation board 9 and the partition 10, and the sound insulation holes 12 are arranged in a circular array. By making the sound insulation holes 12 located between the second sound insulation board 13 and the partition 10, and the sound insulation holes 12 are arranged in a circular array, the exhaust noise can be better eliminated.
[0036] Specifically, a corrugated sound-absorbing layer is installed on one side of the first sound-absorbing plate 8, the second sound-absorbing plate 9, the third sound-absorbing plate 14, and the fourth sound-absorbing plate 16. The corrugated sound-absorbing layers of the first sound-absorbing plate 8 and the second sound-absorbing plate 9 are inside the same chamber, and the corrugated sound-absorbing layers of the third sound-absorbing plate 14 and the fourth sound-absorbing plate 16 are inside the same chamber. By having the corrugated sound-absorbing layers of the first sound-absorbing plate 8 and the second sound-absorbing plate 9 inside the same chamber, and the corrugated sound-absorbing layers of the third sound-absorbing plate 14 and the fourth sound-absorbing plate 16 inside the same chamber, sound waves can be silenced when passing through these two chambers.
[0037] Specifically, a part of the fastener 19 close to the muffler barrel 2 has a larger thickness, and a part located inside the threaded ring 21 has a smaller thickness. By installing the fastener 19 with a larger thickness for the part close to the muffler barrel 2 and a smaller thickness for the part located inside the threaded ring 21, the reserved groove 20 can be tightened when the threaded ring is rotated, and then the fastener 19 can clamp the exhaust pipe 17 to fix the waterproof pipe 3.
[0038] Specifically, the air outlet of the waterproof pipe 3 faces downward. By installing the air outlet of the waterproof pipe 3 to face downward, the probability of water entering the waterproof pipe 3 can be reduced.
[0039] Specifically, there are four chambers inside the muffler barrel 2, and the four chambers are separated by the second sound-absorbing plate 9, the partition 10, and the third sound-absorbing plate 14. By the four chambers separated by the second sound-absorbing plate 9, the partition 10, and the third sound-absorbing plate 14, the exhaust noise can be eliminated to the greatest extent.
[0040] Specifically, the inside of the catalytic box 1, the resonance muffler pipe 23, the muffler barrel 2, the exhaust pipe 17, and the waterproof pipe 3 communicate with each other. By making the inside of the catalytic box 1, the resonance muffler pipe 23, the muffler barrel 2, the exhaust pipe 17, and the waterproof pipe 3 communicate with each other, the exhaust gas and noise can be processed through the catalytic box 1 and the muffler barrel 2 through which they pass.
[0041] Working principle or usage process of the utility model: When the utility model is in use, first, waste gas and noise enter the catalytic box 1 through the air pipe. Most of the waste gas is converted into carbon dioxide, nitrogen, and water vapor through the catalysis of the first ceramic block 6 and the second ceramic block 7. The noise first undergoes silencing through the resonance silencing pipe 23 and then enters the first silencing pipe 11. Part of the noise enters the chamber between the second silencing plate 9 and the partition plate 10 through the silencing holes 12 for silencing treatment. The remaining noise enters the chamber between the partition plate 10 and the third silencing plate 14 through the first silencing pipe 11 for silencing. Then, the noise enters the chamber formed by the first silencing plate 8 and the second silencing plate 9 through the second silencing pipe 13, and the corrugated silencing layer is used to absorb the noise. Then, the noise enters the chamber formed by the third silencing plate 14 and the fourth silencing plate 16 through the third silencing pipe 15 for silencing treatment using the corrugated silencing layer. Finally, the waste gas and noise are discharged through the exhaust pipe 17. When passing through a wading road surface, the threaded ring 21 is tightened to the reserved groove 20, and the waterproof pipe 3 is installed on the outside of the exhaust pipe 17 through the fastener 19 and the rubber ring 18. The water entering the waterproof pipe 3 during driving will be blocked by the water blocking spiral 22 and cannot enter the exhaust pipe.
[0042] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can understand and utilize the present utility model well. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An automobile exhaust pipe structure, comprising a catalytic box (1), a silencing barrel (2) and a waterproof pipe (3), characterized in that: Both ends of the catalytic box (1) are fixedly installed with connectors (4), and one side of the connector (4) is fixedly installed with an air pipe (5); Inside the catalytic box (1), a first ceramic block (6) is fixedly installed, and a second ceramic block (7) is fixedly installed inside the catalytic box (1). One side of the silencing barrel (2) is fixedly connected with a resonance silencing pipe (23); Inside the silencing barrel (2), a first silencing plate (8) is fixedly installed, a second silencing plate (9) is fixedly installed inside the silencing barrel (2), and a partition plate (10) is fixedly installed inside the silencing barrel (2); Inside the first silencing plate (8), the second silencing plate (9) and the partition plate (10), a first silencing pipe (11) is fixedly installed. Sound-absorbing holes (12) are formed on the surface of the first silencing pipe (11), and a second silencing pipe (13) is fixedly installed inside the second silencing plate (9) and the partition plate (10); Inside the silencing barrel (2), a third silencing plate (14) is fixedly installed. Inside the second silencing plate (9), the third silencing plate (14) and the partition plate (10), a third silencing pipe (15) is fixedly installed; Inside the silencing barrel (2), a fourth silencing plate (16) is fixedly installed. One side of the silencing barrel (2) is fixedly installed with an exhaust pipe (17). A rubber ring (18) is movably installed on the outer surface of the exhaust pipe (17), and a fastener (19) is fixedly installed outside the rubber ring (18); A reserved groove (20) is formed on the outside of the fastener (19). A threaded ring (21) is threadedly connected to the outside of the fastener (19), and a water-blocking spiral (22) is fixedly installed inside the waterproof pipe (3).
2. The structure of an automobile exhaust pipe according to claim 1, characterized in that: The sound-absorbing holes (12) are located between the second silencing plate (9) and the partition plate (10), and the sound-absorbing holes (12) are arranged in a circular array.
3. The structure of an automobile exhaust pipe according to claim 1, wherein: On one side of the first silencing plate (8), the second silencing plate (9), the third silencing plate (14) and the fourth silencing plate (16), a corrugated sound-absorbing layer is installed. The corrugated sound-absorbing layers of the first silencing plate (8) and the second silencing plate (9) are inside the same chamber, and the corrugated sound-absorbing layers of the third silencing plate (14) and the fourth silencing plate (16) are inside the same chamber.
4. A structure of an automobile exhaust pipe according to claim 1, characterized in that: A part of the fastener (19) close to the silencing barrel (2) has a larger thickness, and a part located inside the threaded ring (21) has a smaller thickness.
5. The structure of an automobile exhaust pipe according to claim 1, characterized in that: The air outlet of the waterproof pipe (3) faces downward.
6. The structure of an automobile exhaust pipe according to claim 1, characterized in that: Inside the silencing barrel (2), there are four chambers, and the four chambers are separated by the second silencing plate (9), the partition plate (10) and the third silencing plate (14).
7. A structure of an automobile exhaust pipe according to claim 1, characterized in that: The inside of the catalytic box (1), the resonance silencing pipe (23), the silencing barrel (2), the exhaust pipe (17) and the waterproof pipe (3) communicate with each other.